Flooring Calculator
Calculate the square footage of a room and estimate how much flooring material to buy, including wastage and an optional cost estimate.
% extra
Enter room dimensions and click Calculate.
How to use
- Choose feet or meters for your measurements.
- Enter the length and width of the room.
- Set a wastage percentage — 10% is a common default for simple rectangular rooms.
- Optionally enter the price per unit and the pack size if your flooring is sold in boxes.
- Click Calculate to see the total material needed and an estimated cost.
When people use this
- Planning a hardwood, laminate, vinyl, or tile floor
- Working out how many boxes of flooring to order from a supplier
- Comparing the material cost of different flooring options for the same room
- Budgeting for a renovation before getting quotes
- Estimating material for a single room or a whole floor
Examples
12 ft × 10 ft room, 10% wastage: 120 sq ft + 12 sq ft wastage = 132 sq ft total. At $3.50/sq ft, material cost ≈ $462.
5 m × 4 m room, 10% wastage: 20 sq m + 2 sq m wastage = 22 sq m total. At $25/sq m, material cost ≈ $550.
15 ft × 12 ft room, 15% wastage, 20 sq ft per box: 180 sq ft + 27 sq ft wastage = 207 sq ft ≈ 11 boxes needed.
Frequently asked questions
What is wastage and why include it?Wastage is extra material to account for cuts, mistakes, and offcuts. Simple rectangular rooms often need 5–10%; rooms with many corners, angles, or patterns may need 15% or more.
How do I measure my room?Measure the length and width at the widest points. For L-shaped or irregular rooms, split them into rectangles, calculate each area, and add the results together.
Does this include underlay, adhesive, or trims?No — this calculator covers the top flooring material only. Add underlay, adhesive, skirting, and other supplies separately.
What if my room has a closet or alcove?Measure the closet as a separate rectangle and add its area to the main room, or measure the overall length and width including the alcove as one rectangle.
Is the cost estimate accurate?It is a rough estimate based on the price per unit you enter and the total material area. Actual prices, waste, and installation costs vary by supplier and location.